EP2685482B1 - Protective switch device and magnet yoke - Google Patents

Protective switch device and magnet yoke Download PDF

Info

Publication number
EP2685482B1
EP2685482B1 EP13165024.4A EP13165024A EP2685482B1 EP 2685482 B1 EP2685482 B1 EP 2685482B1 EP 13165024 A EP13165024 A EP 13165024A EP 2685482 B1 EP2685482 B1 EP 2685482B1
Authority
EP
European Patent Office
Prior art keywords
current
contact
arc
contact piece
switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13165024.4A
Other languages
German (de)
French (fr)
Other versions
EP2685482A1 (en
Inventor
Thomas Rieger
Winfried Vierling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2685482A1 publication Critical patent/EP2685482A1/en
Application granted granted Critical
Publication of EP2685482B1 publication Critical patent/EP2685482B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element

Definitions

  • the invention relates to a protective switching device, in particular a circuit breaker, with an input terminal and an output terminal, which are designed for contacting with an electrical line, and with a switching contact, which has a stationary fixed contact piece and a movable relative thereto moving contact, which are designed such that forms an arc between the BewegCount Georgia and the fixed contact when opening the current-carrying switching contact, wherein the switching contact via a current path to the input terminal and the output terminal is electrically connected.
  • Circuit breakers are designed especially for high currents.
  • a circuit breaker (so-called LS switch) is an overcurrent protection device used in electrical installations and is used in particular in the field of low-voltage networks.
  • Circuit-breakers and miniature circuit-breakers guarantee a safe shutdown in the event of a short circuit and protect consumers and electrical equipment from overload, for example, from damage to the cables due to excessive heating due to excessive electrical current.
  • Circuit breakers and circuit breakers are used in particular as switching and safety elements in electrical energy supply networks and serve to monitor and safeguard an electrical circuit.
  • the protective switching device is electrically connected via two terminals with an electrical line of the circuit to be monitored in order to interrupt the electrical current in the respective line when needed.
  • the protective switching device in this case has a switching contact with a fixed fixed contact piece and a relatively movable moving contact piece.
  • the moving contact piece is actuated via a switching mechanism of the protective switching device, so that the switching contact can be opened and closed. In this way, when a predefined state, for example a short circuit or an overload, occurs, the switching contact is opened in order to disconnect the monitored circuit from the electrical line network.
  • Such protective switching devices are known in the field of low-voltage technology as DIN rail mounted devices.
  • some protective switching devices In order to drive the arc more quickly into the arc quenching chamber, some protective switching devices additionally have a so-called blowing loop.
  • This is a coil which is electrically connected such that it is energized only with the commutation of the arc on the guide rail in order to limit the energy loss of the protective device in the switched-on operation.
  • the blowing loop is arranged such that the resulting electromagnetic field is oriented so that it exerts a Lorentz force on the arc, which urges the arc in the direction of the arc quenching chamber.
  • Such protective switching devices are for example from the Patent DE 28 41 004 or even the Laid-open publication DE 33 33 792 A1 known.
  • the EP 0 576 992 A2 shows a circuit breaker, which, for example, a stationary contact piece, which is connected to a power source comprises.
  • the fixed contact is located on an inner side of the contact piece.
  • An electromagnetic generated by the current path Force acts on the arc and stretches it out to the side of the terminal.
  • the US 5 837 954 A discloses a circuit breaker in which, based on current conduction through an electrically conductive element, an electromagnetic force F is generated by which the arc is deflected in the direction of a clamp.
  • the DE 195 24 915 A1 discloses an arc extinguishing assembly having a blow loop disposed adjacent to a pad that connects a fixed contact to a power port and provides an electromagnetic field to expel the arc when the pad is opened.
  • the protective switching device in particular a circuit breaker, has an input terminal and an output terminal, which are designed for contacting the protective switching device with an electrical line. Furthermore, the protective switching device has a switching contact, which in turn has a fixedly arranged stationary contact piece and a relatively movable BewegMap Georgia which are designed such that forms an arc between the BewegMap colleges and the fixed contact when opening the current-carrying switching contact. In this case, the switching contact is electrically conductively connected via a current path to the input terminal and the output terminal.
  • This current path has a current-carrying section, which is designed in such a way and interacts with the arc in such a way that a resulting electromagnetic field is formed, which interacts with the arc in such a way that it is driven away from the switching contact.
  • the current path which conducts the electric current inside the protective switching device from the input terminal to the fixed contact piece and - with the switching contact closed - from the electrically connected to the fixed contact piece BewegCount conferences to the output terminal, has in the area, ie in the immediate vicinity of the switching contact on a current carrying section.
  • the current-carrying section is therefore a section of the current path in the region of the switching contact, this section either in a first region of the current path between the input terminal and the fixed contact piece, or a second region of the current path between the BewegWallet conferences and the output terminal can be arranged. In principle, it would also be possible to arrange a corresponding current-carrying section both in the first region and in the second region.
  • the current-carrying section is geometrically designed in such a way that an electromagnetic field arises in the current-carrying state, which is oriented in such a way that it exerts a defined force on the arc, the so-called Lorentz force. Since an arc is also a current flow, even if it is not connected to an electrical line, this Lorentz force in turn acts on the arc in such a way that it moves away from the contact area of the switching contact, ie from the fixed and moving contact becomes. In this way, the arc can be driven faster into a quenching chamber of the protective device and deleted there.
  • the switching capacity which is related to the duration of the emergence of the arc until its extinction, thereby significantly improved. Furthermore, the fact that the arc burns only correspondingly short between the fixed contact piece and the moving contact piece, the material removal caused by fixed contact and moving contact significantly reduced, which leads to a significant increase in the life of the protective device. Furthermore, this also requires less contact material for the contact pieces, so that the switching contact and thus the protective switching device can be realized correspondingly more compactly.
  • the current-carrying section is designed such that it communicates with the between the moving contact piece and fixed contact piece for When the contact opening burning arc forms a substantially U-shaped current flow.
  • a substantially U-shaped current guide results, which is composed of a first leg, which is formed by the line-connected current-carrying section, and a second leg, which is formed by the line-free arc.
  • the two legs are opposite, ie substantially parallel to each other, but oriented opposite to each other, flows through the current.
  • the current-carrying section is arranged in the first region of the current path, ie between the input terminal and the fixed contact piece, and designed in such a way that the current flowing to the stationary contact piece has a U-shaped profile.
  • the current-carrying section is spatially positioned relatively close to the switching contact and thus to the arc which forms when the switching contact is opened in order to achieve the highest possible force acting on the arc. In this way, the switching performance can be further improved.
  • the protective switching device has a magnetic release system, which is electrically conductively connected to the input terminal via a coil and has a plunger that is mounted so as to be movable relative to the coil.
  • the plunger acts in the event of a short circuit directly and / or indirectly to the switching contact to cause by moving away the Bewegrome foundeds from the fixed contact opening of the switching contact.
  • the magnetic release system has a magnetic yoke over which the coil with the fixed contact piece is electrically conductive is connected, wherein the current-carrying portion is formed as part of the magnetic yoke.
  • a magnetic trip system with a solenoid and a relative thereto movably mounted ram represents a widespread in the field of protection devices possibility of realization of a trigger in the event of a short circuit. If a short-circuit current, so this is passed through the coil, whereby one connected to the plunger Anchor is attracted by the coil. The plunger strikes the BewegCount Georgia or on a mechanically connected with this BewegMapmik, so that it is moved away from the BewegCount proceedings to prevent welding of the two contact pieces. Furthermore, a switching mechanism of the protective switching device is triggered by the movement of the plunger, whereby the switching contact is also opened via the mechanically coupled with the switching mechanism BewegMessage conspiracy.
  • the coil is electrically connected to the BewegCount scholar.
  • the magnetic yoke is thus the part of the first region of the current path next to the moving contact piece.
  • This area is structurally designed such that the current flowing from the coil via the magnetic yoke to the fixed contact piece runs in a U-shaped manner.
  • the current profile in the region of the current-carrying section is oriented substantially opposite to the current profile across the arc. If the current-carrying section is spatially positioned relatively close to the switching contact and thus to the arc which forms when the switching contact is opened, the highest possible force acting on the arc can thereby be achieved.
  • the magnetic yoke is forked in the region of the current-carrying section and has two Leg on, so that moving contact piece and moving contact carrier is at least partially disposed with closed switching contact between the two legs of the current-carrying section.
  • the current-carrying section is arranged spatially in the immediate vicinity of the arc which forms when the switching contact is opened.
  • the resulting in cooperation with the arc electric field thus has a much higher field strength, which in turn acts on the arc significantly higher power, so that the arc is driven faster in from the contact area in the direction of the quenching chamber.
  • the switching capacity of the protective switching device is thereby further improved.
  • the moving contact piece is arranged on a rotatably mounted moving contact carrier, wherein the current-carrying section is part of the moving contact carrier.
  • the current-carrying section instead of forming the current-carrying section in the first region of the current path, formation in the second region of the current path, i. on the way from the moving contact to the output connection, possible.
  • This training in the second area can be done alternatively to training in the first area, but also in addition. It is essential, in turn, that the current-carrying section is arranged spatially relatively close to the switching contact and thus to the arc which forms when the switching contact is opened in order to achieve the highest possible force acting on the arc. In this way, the switching performance is further improved.
  • the current-carrying section is rotatably or flexibly connected to the moving contact carrier.
  • the current-carrying section formed in the second region of the current path is connected in a rotationally movable manner or at least flexibly to the moving-contact carrier.
  • the current-carrying section is mounted stationary relative to a housing of the protective switching device. In this way, a simplified installation of the protective device is guaranteed.
  • the magnetic yoke according to the invention is designed for use in a protective switching device of the type described above.
  • the magnetic yoke according to the invention is provided for installation in a magnetic trip system of an electrical protection switching device, in particular a circuit breaker. It has a first region, which is designed for electrically conductive contacting of the magnetic yoke with a trip coil of the magnetic trip system. Furthermore, the magnetic yoke on a second region, which is designed for electrically conductive contacting of the magnetic yoke with a fixed contact piece of a switching contact of the protective switching device. This results in the opening of the energized switching contact an arc, which first, ie burns in a first phase of the arc, between the fixed contact piece and a movable relative to moving contact piece.
  • the magnetic yoke according to the invention is geometrically designed such that in the energized state, the current flow in the second region is oriented at least partially substantially opposite to the current flow across the arc.
  • the interaction of the current flowing through the second region and the arc creates an electromagnetic field whose Field lines are oriented in the region of the arc so that a defined force, the so-called Lorentz force is applied to the arc, which is directed such that the arc from the contact region of the switching contact, that is moved away from fixed and moving contact.
  • the arc can be driven faster into a quenching chamber of the protective device and deleted there.
  • the switching capacity which is related to the duration of the emergence of the arc until its extinction, thereby significantly improved.
  • a switching contact of the protective switching device 1 is shown schematically in several switching states.
  • the switching contact has a fixed contact piece 4 and a relatively movable BewegWallet Sea 5 on.
  • the BewegWalletexcellent 5 is mounted on a rotatably mounted in a housing of the protective switching device 1 BewegMap whatsoever 6.
  • it is also possible to integrate the BewegWallets 5 in the Beweg.mik 6 such that a suitable portion of the Beweg.miks 6 acts as BewegWalletmin 5 and forms the switching contact together with the fixed contact 4.
  • the fixed contact piece 4 is mounted on a fixed contact carrier 22 which is part of a magnetic yoke 20.
  • the yoke 20 has an electrical connection element 21, via which the magnetic yoke 20 is electrically conductively connected to a magnet coil 12.
  • the solenoid 20 is part of a magnetic trip system 10 (see FIGS. 2A and 2B ), which causes an opening of the switching contact in the event of a short circuit.
  • the magnetic yoke 20 has a contact horn 23, via which the magnetic yoke 20 is electrically conductively connected to a first end of a quenching chamber 7 of the protective switching device 1.
  • the protective switching device 1 Via an input terminal (not shown) and an output terminal (not shown), which may be formed, for example, as terminals, the protective switching device 1 is integrated into an electrical line to be protected. Inside the protective switching device 1 - if the switching contact is closed - the input terminal and the output terminal are electrically conductively connected to one another via a current path.
  • the current flow I guided over the current path is represented by simple arrows in the area of the respective components.
  • a first region of the current path leads from the input terminal via the magnet coil 12 and the magnetic yoke 20 to the fixed contact piece 4.
  • a second region of the current path leads from the moving contact piece 5 to the output terminal of the protective switching device 1.
  • FIG. 1A the protective switching device 1 is shown with a closed switch contact, ie, the fixed contact piece 4 and the moving contact piece 5 are in direct contact, so that via the switching contact, an electric current can flow.
  • a closed switch contact ie, the fixed contact piece 4 and the moving contact piece 5 are in direct contact, so that via the switching contact, an electric current can flow.
  • input terminal and output terminal are electrically connected to each other.
  • the switching contact is opened by moving away the moving contact piece 5 from the fixed contact piece 4, an arc 9 is formed between the fixed contact piece 4 and the moving contact piece 5, provided that the switching contact is current-flowed at the time of opening.
  • FIG. 1B shows.
  • the first region of the current path has a current-carrying section 24, which is formed on the magnetic yoke 20.
  • This current-carrying section 24 is geometrically arranged such that it cooperates with the arc 9 burning between the fixed contact piece 4 and the moving contact piece 5 in such a way that a resulting electromagnetic field is formed whose field lines are oriented substantially perpendicular to the plane of the drawing in the area of the switching contact.
  • This electromagnetic field exerts on the arc 9 and the current-carrying section 24 a force F, which presses the two line sections - the current-carrying section 24 and the arc 9 - apart.
  • the force F repelling between the current-carrying section 24 and the arc 9 causes the arc 9 to be driven away from the current-carrying section-and thus from the switching contact-in the direction of the quenching chamber 7.
  • the moving contact piece 5 is further moved away from the fixed contact piece by a further pivoting movement of the moving contact carrier 6, the arc jumps from a certain length to a so-called guide rail 8, which is electrically conductively connected to a second end of the extinguishing chamber 7.
  • the arc then burns first between the electrically connected to the fixed contact 4 contact horn 23 and the guide rail 8, before being passed into the quenching chamber 7 and deleted there.
  • FIGS. 2A and 2B the magnetic trip system 10 of the protective switching device 1 is shown schematically in several views.
  • an electrical connection line 11 which may be designed as a flexible strand as well as rigid, the magnetic trip system with the input terminal of the protection device 1 is electrically connected.
  • the connecting line 11 is further electrically conductively connected to a first end of the magnetic coil 12.
  • an armature plunger assembly (not shown) is slidably mounted in the solenoid coil 12 such that in the event of a short circuit in which a short circuit current flows through the solenoid coil 12, the armature is pulled into the solenoid coil 12.
  • the firmly connected to the anchor plunger strikes a release lever, whereby a switching mechanism of the protective device 1 is triggered, which causes an opening of the switch contact.
  • the magnetic yoke 20 is designed in the illustrated embodiment as a sheet metal bent part.
  • the yoke 20 is electrically conductive with a second end of the solenoid coil 12 connected.
  • the electric current I flows from the solenoid coil 12 via the connection element 21 on the current guide portion 24 to a fixed contact carrier 22 designated area of the magnetic yoke 20.
  • the fixed contact 4 is fixedly connected to the yoke 20.
  • the switch contact is closed, the electric current continues to flow via the fixed contact piece 4 and the moving contact piece 5 and the moving contact carrier 6, which in turn is electrically conductively connected to the output terminal of the protective switching device 1.
  • the current first flows through the arc 9.
  • the guide rail 8 (see Figures 1A and 1B ), which is electrically conductively connected at one end to the arc quenching chamber 7 and at the other end to the output terminal, the current - starting from the designated as fixed contact carrier 22 portion of the magnetic yoke 20 - via the contact horn 23 to a quenching chamber plate 27 trained area.
  • This quenching chamber plate 27 represents the upper end of the arc quenching chamber 7; the lower end of the arc quenching chamber 7 is electrically conductively connected to the guide rail 8.
  • the arc is driven into the arc quenching chamber 7, it is divided by the quenching plates arranged there in parallel into a plurality of partial arcs connected electrically in series with each other. Due to this electrical series connection, the total arc voltage increases so far that the arc eventually stops and goes out.
  • the magnetic yoke 20 is forked, ie the BewegWallettown 6 with the BewegCount institutions arranged thereon 25 dives at the closed switch contact at least partially between the two parts of the current-carrying section 24 of the forked magnetic yoke 20 on.
  • the forming during opening of the switching contact arc 9 is in close proximity to the two parts of the current-carrying section 24, whereby a significantly higher field strength is achieved for the resulting in cooperation with the electric arc 9 electromagnetic field.
  • a significantly higher Lorentz force acts on the arc 9, so that the arc 9 is driven faster out of the contact region in the direction of the quenching chamber 7.
  • FIG. 3 shows a schematic detail of the magnetic yoke 20 of the magnetic trip system 10.
  • the design as a sheet metal bent part and the bifurcated design in the region of the current-carrying section 24 are clearly visible.
  • the magnetic yoke 20 has an opening 26, which at least partially immersed in the assembled state in the solenoid coil 12 and is designed to receive and guide the armature plunger assembly. In this way, the magnetic release system can be made as compact as possible.
  • the current-carrying section 24 is arranged on the magnetic yoke 20 and thus in the first region of the current path.
  • the current-carrying section in the second region of the current path, ie between the moving contact 6 and the output connection. This can be done both alternatively and in addition to the arrangement in the first region of the current path.
  • the moving contact carrier 6 could also be correspondingly shaped such that a current-carrying section of the moving contact carrier 6 is oriented essentially opposite to the arc 9.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)

Description

Die Erfindung betrifft ein Schutzschaltgerät, insbesondere einen Leitungsschutzschalter, mit einem Eingangsanschluss sowie einem Ausgangsanschluss, welche zur Kontaktierung mit einer elektrischen Leitung ausgebildet sind, sowie mit einem Schaltkontakt, welcher ein ortsfest angeordnetes Festkontaktstück sowie ein relativ dazu bewegliches Bewegkontaktstück aufweist, welche derart ausgebildet sind, dass sich beim Öffnen des stromführenden Schaltkontaktes ein Lichtbogen zwischen dem Bewegkontaktstück und dem Festkontaktstück ausbildet, wobei der Schaltkontakt über einen Strompfad mit dem Eingangsanschluss und dem Ausgangsanschluss elektrisch leitend verbunden ist.The invention relates to a protective switching device, in particular a circuit breaker, with an input terminal and an output terminal, which are designed for contacting with an electrical line, and with a switching contact, which has a stationary fixed contact piece and a movable relative thereto moving contact, which are designed such that forms an arc between the Bewegkontaktstück and the fixed contact when opening the current-carrying switching contact, wherein the switching contact via a current path to the input terminal and the output terminal is electrically connected.

Aus dem Stand der Technik sind verschiedene Schutzschaltgeräte bekannt: Leistungsschalter sind speziell für hohe Ströme ausgelegt. Ein Leitungsschutzschalter (sogenannter LS-Schalter) ist eine in der Elektroinstallation verwendete Überstromschutzeinrichtung und wird insbesondere im Bereich der Niederspannungsnetze eingesetzt. Leistungsschalter und Leitungsschutzschalter garantieren ein sicheres Abschalten bei Kurzschluss und schützen Verbraucher und elektrische Anlagen vor Überlast, beispielsweise vor Beschädigung der Leitungen durch zu starke Erwärmung in Folge eines zu hohen elektrischen Stromes. Leistungsschalter und Leitungsschutzschalter werden insbesondere als Schalt- und Sicherheitselemente in elektrischen Energieversorgungsnetzen eingesetzt und dienen der Überwachung und Absicherung eines elektrischen Stromkreises.Various protective switching devices are known from the prior art: Circuit breakers are designed especially for high currents. A circuit breaker (so-called LS switch) is an overcurrent protection device used in electrical installations and is used in particular in the field of low-voltage networks. Circuit-breakers and miniature circuit-breakers guarantee a safe shutdown in the event of a short circuit and protect consumers and electrical equipment from overload, for example, from damage to the cables due to excessive heating due to excessive electrical current. Circuit breakers and circuit breakers are used in particular as switching and safety elements in electrical energy supply networks and serve to monitor and safeguard an electrical circuit.

Hierzu wird das Schutzschaltgerät über zwei Anschlussklemmen mit einer elektrischen Leitung des zu überwachenden Stromkreises elektrisch leitend verbunden, um bei Bedarf den elektrischen Strom in der jeweiligen Leitung zu unterbrechen. Das Schutzschaltgerät weist dabei einen Schaltkontakt mit einem ortsfesten Festkontaktstück sowie einem relativ dazu beweglichen Bewegkontaktstück auf. Das Bewegkontaktstück ist dabei über eine Schaltmechanik des Schutzschaltgerätes betätigbar, so dass der Schaltkontakt geöffnet und geschlossen werden kann. Auf diese Weise wird bei Auftreten eines vordefinierten Zustandes, beispielsweise eines Kurzschlusses oder einer Überlast, der Schaltkontakt geöffnet, um den überwachten Stromkreis vom elektrischen Leitungsnetz zu trennen. Derartige Schutzschaltgeräte sind auf dem Gebiet der Niederspannungstechnik auch als Reiheneinbaugeräte bekannt.For this purpose, the protective switching device is electrically connected via two terminals with an electrical line of the circuit to be monitored in order to interrupt the electrical current in the respective line when needed. The protective switching device in this case has a switching contact with a fixed fixed contact piece and a relatively movable moving contact piece. The moving contact piece is actuated via a switching mechanism of the protective switching device, so that the switching contact can be opened and closed. In this way, when a predefined state, for example a short circuit or an overload, occurs, the switching contact is opened in order to disconnect the monitored circuit from the electrical line network. Such protective switching devices are known in the field of low-voltage technology as DIN rail mounted devices.

Wird der Schaltkontakt zu einem Zeitpunkt geöffnet, zu dem Strom über den Schaltkontakt fließt, so bildet sich beim Öffnen des Schaltkontakts zwischen dem Festkontaktstück und dem sich entfernenden Bewegkontaktstück ein Lichtbogen aus. Zum Löschen des Lichtbogens weisen herkömmliche Schutzschaltgeräte eine sogenannte Löschkammer mit eine Vielzahl nebeneinander angeordneter und voneinander beabstandeter Löschbleche auf. Wird der Lichtbogen in die Löschkammer getrieben, so teilt er sich bei Auftreffen auf die Löschbleche in mehrere Teil-Lichtbögen auf, welche anschließend in Reihe geschaltet zwischen den einzelnen Löschblechen brennen. Die mehreren, elektrisch sequentiell hintereinander geschalteten Teil-Lichtbögen führen insgesamt zu einer höheren Bogenspannung, was in der Folge zu einem schnelleren Erlöschen des Lichtbogens führt.If the switching contact is opened at a time when current flows through the switching contact, an arc is formed when the switching contact between the fixed contact piece and the moving contact piece is removed. To extinguish the arc, conventional protective switching devices have a so-called quenching chamber with a multiplicity of splitter plates arranged side by side and spaced from one another. If the arc is driven into the quenching chamber, it divides when hitting the quenching plates in several partial arcs, which then burn in series between the individual quenching plates burn. The multiple, partially sequentially connected in series, partial arcs lead to an overall higher arc voltage, which leads to a faster extinction of the arc as a result.

Ein zwischen dem Festkontaktstück und dem Bewegkontaktstück stehender Lichtbogen führt dabei zu einem sogenannten Kontaktabbrand, d.h. es erfolgt ein Materialabtrag von dem Festkontaktstück und dem Bewegkontaktstück, was letztendlich zu Beschädigungen des Schutzschaltgerätes führt, da der Kontaktabbrand bei einem geschlossenen, stromdurchflossenen Schaltkontakt zu einem erhöhten elektrischen Widerstand führt. Aus diesem Grund soll der Lichtbogen möglichst schnell aus dem Kontaktbereich in die Löschkammer getrieben werden. Hierzu weisen herkömmliche Schutzschaltgeräte eine sogenannte Leitschiene auf, welche mit einem Ende der Lichtbogen-Löschkammer elektrisch leitend verbunden ist. Das andere Ende der Lichtbogen-Löschkammer ist über ein Festkontakthorn mit dem Festkontaktstück elektrisch leitend verbunden. Die Leitschiene ist dabei derart angeordnet, dass das Bewegkontaktstück beim Öffnen des Schaltkontakts in die Nähe der Leitschiene verbracht wird. Beim Öffnen des Schaltkontakts wird der Lichtbogen immer länger, wodurch die Bogenspannung ansteigt. Ab einer bestimmten Bogenspannung springt der Lichtbogen dann von dem Bewegkontaktstück auf die Leitschiene über - er kommutiert und brennt fortan zwischen dem Festkontaktstück bzw. dem Festkontakthorn und der Leitschiene. Durch eine geeignete geometrische Gestaltung des Festkontakthorns sowie der Leitschiene wird der Lichtbogen in Richtung der Lichtbogen-Löschkammer geführt.A standing between the fixed contact piece and the Bewegkontaktstück arc leads to a so-called contact erosion, ie there is a removal of material from the fixed contact and the Bewegkontaktstück, which ultimately leads to damage to the protective switching device, since the contact erosion in a closed, current-carrying switching contact to an increased electrical resistance leads. For this reason, the arc should be driven as quickly as possible from the contact area in the quenching chamber. For this conventional protection switching devices have a so-called guide rail, which is electrically connected to one end of the arc-quenching chamber. The other end of the arc-quenching chamber is electrically connected via a Festkontakthorn with the fixed contact. The guide rail is arranged such that the moving contact piece is moved when opening the switch contact in the vicinity of the guide rail. When the switch contact is opened, the arc gets longer, causing the arc voltage to increase. From a certain arc voltage, the arc then jumps from the Bewegkontaktstück on the guide rail - it commutes and burns henceforth between the fixed contact or the Festkontakthorn and the guide rail. By a suitable geometric design of Festkontakthorns and the guide rail of the arc is guided in the direction of the arc quenching chamber.

Um den Lichtbogen schneller in die Lichtbogen-Löschkammer zu treiben weisen einige Schutzschaltgeräte zusätzlich eine sogenannte Blasschleife auf. Dabei handelt es sich um eine Spule, welche elektrisch derart verschaltet ist, dass sie erst mit der Kommutierung des Lichtbogens auf die Leitschiene bestromt wird, um die Verlustenergie des Schutzschaltgerätes im eingeschalteten Betrieb zu begrenzen. Die Blasschleife ist dabei derart angeordnet, dass das resultierende elektromagnetische Feld derart orientiert ist, dass es auf den Lichtbogen eine Lorentzkraft ausübt, welche den Lichtbogen in Richtung der Lichtbogen-Löschkammer drängt. Derartige Schutzschaltgeräte sind beispielsweise aus der Patentschrift DE 28 41 004 oder auch der Offenlegungsschrift DE 33 33 792 A1 bekannt. Die EP 0 576 992 A2 zeigt einen Schutzschalter, welcher beispielsweise ein stationäres Schaltstück, welches mit einer Stromquelle verbunden ist, aufweist. Der Festkontakt befindet sich an einer Innenseite des Schaltstücks. Bei Auftreten eines Kurzschlussstromes wird ein Kontakt zwischen dem Wanderkontakt und dem Festkontakt geöffnet, wobei sich ein Lichtbogen ausbildet. Eine durch den Strompfad erzeugte elektromagnetische Kraft kommt am Lichtbogen zur Wirkung und streckt diesen zur Seite der Anschlussklemme hin. Die US 5 837 954 A offenbart einen Schutzschalter, bei welchem basierend auf einer Stromführung durch ein stromleitendes Element eine elektromagnetische Kraft F erzeugt wird, durch welche der Lichtbogen in Richtung einer Klemme ausgelenkt wird. In der EP 0 231 600 A1 ist ebenfalls ein Schutzschaltgerät zur Bildung einer elektromagnetischen Kraft zur Auslenkung eines zwischen den sich öffnenden Kontakten entstehenden Lichtbogens beschrieben. Die DE 195 24 915 A1 offenbart eine Lichtbogenlöschanordnung mit einem neben einer Kontaktstelle angeordneten Blasschleife, die einen Festkontakt mit einem Stromanschluss verbindet und bei Öffnung der Kontaktstelle ein elektromagnetisches Feld zum Vertreiben des Lichtbogens bereitstellt.In order to drive the arc more quickly into the arc quenching chamber, some protective switching devices additionally have a so-called blowing loop. This is a coil which is electrically connected such that it is energized only with the commutation of the arc on the guide rail in order to limit the energy loss of the protective device in the switched-on operation. The blowing loop is arranged such that the resulting electromagnetic field is oriented so that it exerts a Lorentz force on the arc, which urges the arc in the direction of the arc quenching chamber. Such protective switching devices are for example from the Patent DE 28 41 004 or even the Laid-open publication DE 33 33 792 A1 known. The EP 0 576 992 A2 shows a circuit breaker, which, for example, a stationary contact piece, which is connected to a power source comprises. The fixed contact is located on an inner side of the contact piece. When a short-circuit current occurs, a contact between the wander contact and the fixed contact is opened, forming an arc. An electromagnetic generated by the current path Force acts on the arc and stretches it out to the side of the terminal. The US 5 837 954 A discloses a circuit breaker in which, based on current conduction through an electrically conductive element, an electromagnetic force F is generated by which the arc is deflected in the direction of a clamp. In the EP 0 231 600 A1 A protective switching device is also described for forming an electromagnetic force for deflecting an arc which arises between the contacts which open. The DE 195 24 915 A1 discloses an arc extinguishing assembly having a blow loop disposed adjacent to a pad that connects a fixed contact to a power port and provides an electromagnetic field to expel the arc when the pad is opened.

Es ist die Aufgabe der vorliegenden Erfindung ein Schutzschaltgerät bereitzustellen, welches sich durch einen geringeren Kontaktabbrand und damit durch eine erhöhte Lebensdauer sowie eine verbesserte Schaltleistung auszeichnet.It is the object of the present invention to provide a protective switching device, which is characterized by a lower contact erosion and thus by an increased life and improved switching performance.

Diese Aufgabe wird durch das erfindungsgemäße Schutzschaltgerät sowie das erfindungsgemäße Magnetjoch gemäß den unabhängigen Ansprüchen gelöst. Vorteilhafte Ausgestaltungen sind Gegenstand der abhängigen Ansprüche.This object is achieved by the protective switching device according to the invention and the magnetic yoke according to the invention according to the independent claims. Advantageous embodiments are the subject of the dependent claims.

Das erfindungsgemäße Schutzschaltgerät, insbesondere ein Leitungsschutzschalter, weist einen Eingangsanschluss sowie einem Ausgangsanschluss auf, welche zur Kontaktierung des Schutzschaltgerätes mit einer elektrischen Leitung ausgebildet sind. Weiterhin weist das Schutzschaltgerät einen Schaltkontakt auf, welcher seinerseits ein ortsfest angeordnetes Festkontaktstück sowie ein relativ dazu bewegliches Bewegkontaktstück aufweist, welche derart ausgebildet sind, dass sich beim Öffnen des stromführenden Schaltkontaktes ein Lichtbogen zwischen dem Bewegkontaktstück und dem Festkontaktstück ausbildet. Dabei ist der Schaltkontakt über einen Strompfad mit dem Eingangsanschluss und dem Ausgangsanschluss elektrisch leitend verbunden. Dieser Strompfad weist einen Stromführungsabschnitt auf, welcher derart ausgebildet ist und mit dem Lichtbogen derart zusammenwirkt, das ein resultierendes elektromagnetisches Feld gebildet wird, welches mit dem Lichtbogen derart wechselwirkt, dass dieser von dem Schaltkontakt wegtrieben wird.The protective switching device according to the invention, in particular a circuit breaker, has an input terminal and an output terminal, which are designed for contacting the protective switching device with an electrical line. Furthermore, the protective switching device has a switching contact, which in turn has a fixedly arranged stationary contact piece and a relatively movable Bewegkontaktstück which are designed such that forms an arc between the Bewegkontaktstück and the fixed contact when opening the current-carrying switching contact. In this case, the switching contact is electrically conductively connected via a current path to the input terminal and the output terminal. This current path has a current-carrying section, which is designed in such a way and interacts with the arc in such a way that a resulting electromagnetic field is formed, which interacts with the arc in such a way that it is driven away from the switching contact.

Fließt über den Schaltkontakt ein elektrischer Strom, so entsteht beim Öffnen des Schaltkontaktes, d.h. bei einem Wegbewegen des Bewegkontaktstücks vom Festkontaktstücks, ein Lichtbogen. Der Strompfad, welcher den elektrischen Strom im Inneren des Schutzschaltgerätes vom Eingangsanschluss zum Festkontaktstück und - bei geschlossenem Schaltkontakt - von dem mit dem Festkontaktstück elektrisch leitend verbundenen Bewegkontaktstück zum Ausgangsanschluss leitet, weist im Bereich, d.h. in unmittelbarer Nähe, des Schaltkontaktes einen Stromführungsabschnitt auf. Bei dem Stromführungsabschnitt handelt es sich folglich um einen Abschnitt des Strompfades im Bereich des Schaltkontaktes, wobei dieser Abschnitt entweder in einem ersten Bereich des Strompfades zwischen dem Eingangsanschluss und dem Festkontaktstück, oder einem zweiten Bereich des Strompfades zwischen dem Bewegkontaktstück und dem Ausgangsanschluss angeordnet sein kann. Prinzipiell wäre es ebenso möglich, einen entsprechenden Stromführungsabschnitt sowohl im ersten Bereich als auch im zweiten Bereich anzuordnen.If an electrical current flows via the switching contact, an arc occurs when the switching contact is opened, ie when the moving contact piece moves away from the fixed contact piece. The current path, which conducts the electric current inside the protective switching device from the input terminal to the fixed contact piece and - with the switching contact closed - from the electrically connected to the fixed contact piece Bewegkontaktstück to the output terminal, has in the area, ie in the immediate vicinity of the switching contact on a current carrying section. The current-carrying section is therefore a section of the current path in the region of the switching contact, this section either in a first region of the current path between the input terminal and the fixed contact piece, or a second region of the current path between the Bewegkontaktstück and the output terminal can be arranged. In principle, it would also be possible to arrange a corresponding current-carrying section both in the first region and in the second region.

Fließt durch einen elektrischen Leiter ein elektrischer Strom, so wird hierdurch ein elektromagnetisches Feld erzeugt. Der Stromführungsabschnitt ist dabei geometrisch derart gestaltet, dass im stromdurchflossenen Zustand ein elektromagnetisches Feld entsteht, welches derart orientiert ist, dass es auf den Lichtbogen eine definierte Kraft, die sogenannte Lorentzkraft ausübt. Da es sich bei einem Lichtbogen ebenfalls um einen Stromfluss, wenn auch ohne Bindung zu einer elektrischen Leitung, handelt, wirkt diese Lorentzkraft wiederum auf den Lichtbogen ein, in der Art, dass dieser aus dem Kontaktbereich des Schaltkontaktes, d.h. von Fest- und Bewegkontakt wegbewegt wird. Auf diese Weise kann der Lichtbogen schneller in eine Löschkammer des Schutzschaltgerätes getrieben und dort gelöscht werden. Die Schaltleistung, die mit der Dauer von der Entstehung des Lichtbogens bis zu dessen Erlöschen zusammenhängt, wird dadurch deutlich verbessert. Weiterhin wird dadurch, dass der Lichtbogen nur entsprechend kurz zwischen dem Festkontaktstück und dem Bewegkontaktstück brennt, der dadurch verursachte Materialabtrag an Festkontaktstück und Bewegkontaktstück deutlich reduziert, was zu einer deutlichen Erhöhung der Lebensdauer des Schutzschaltgerätes führt. Ferner ist dadurch auch weniger Kontaktmaterial für die Kontaktstücke erforderlich, so dass der Schaltkontakt und damit das Schutzschaltgerät entsprechend kompakter realisierbar sind. Erfindungsgemäß ist der Stromführungsabschnitt derart ausgebildet, dass er mit dem zwischen Bewegkontaktstück und Festkontaktstück zum Zeitpunkt der Kontaktöffnung brennenden Lichtbogen eine im Wesentlichen u-förmige Stromführung bildet.If an electric current flows through an electrical conductor, an electromagnetic field is thereby generated. The current-carrying section is geometrically designed in such a way that an electromagnetic field arises in the current-carrying state, which is oriented in such a way that it exerts a defined force on the arc, the so-called Lorentz force. Since an arc is also a current flow, even if it is not connected to an electrical line, this Lorentz force in turn acts on the arc in such a way that it moves away from the contact area of the switching contact, ie from the fixed and moving contact becomes. In this way, the arc can be driven faster into a quenching chamber of the protective device and deleted there. The switching capacity, which is related to the duration of the emergence of the arc until its extinction, thereby significantly improved. Furthermore, the fact that the arc burns only correspondingly short between the fixed contact piece and the moving contact piece, the material removal caused by fixed contact and moving contact significantly reduced, which leads to a significant increase in the life of the protective device. Furthermore, this also requires less contact material for the contact pieces, so that the switching contact and thus the protective switching device can be realized correspondingly more compactly. According to the invention, the current-carrying section is designed such that it communicates with the between the moving contact piece and fixed contact piece for When the contact opening burning arc forms a substantially U-shaped current flow.

Vom Zeitpunkt der Kontaktöffnung bis zum Zeitpunkt einer Kommutierung des Lichtbogens von dem Bewegkontaktstück auf eine Leitschiene des Schutzschaltgerätes, brennt der Lichtbogen zwischen dem Festkontaktstück und dem Bewegkontaktstück. In diesem Zeitraum ergibt sich eine im Wesentlichen u-förmige Stromführung, die aus einem ersten Schenkel, welcher durch den leitungsgebundenen Stromführungsabschnitt gebildet ist, und einem zweiten Schenkel, welcher durch den leitungsungebundenen Lichtbogen gebildet ist, zusammengesetzt ist. Dabei werden die beiden Schenkel gegengleich, d.h. im Wesentlichen parallel zueinander, aber einander entgegengesetzt orientiert, vom Strom durchflossen. Der Stromführungsabschnitt ist dabei in dem ersten Bereich des Strompfades, d.h. zwischen dem Eingangsanschluss und dem Festkontaktstück, angeordnet und konstruktiv derart gestaltet, dass der zum Festkontaktstück fließende Strom einen u-förmigen Verlauf aufweist. Vorteilhafter Weise ist der Stromführungsabschnitt dabei räumlich relativ nahe an dem Schaltkontakt und damit an dem sich bei Öffnen des Schaltkontakts ausbildenden Lichtbogen positioniert, um eine möglichst hohe Kraftwirkung auf den Lichtbogen zu erzielen. Auf diese Weise kann die Schaltleistung weiter verbessert werden. Erfindungsgemäß weist das Schutzschaltgerät ein magnetisches Auslösesystem auf, welches über eine Spule mit dem Eingangsanschluss elektrisch leitend verbunden ist und einen relativ zur Spule beweglichen gelagerten Stößel aufweist. Der Stößel wirkt im Falle eines Kurzschlusses direkt und/oder indirekt auf den Schaltkontakt ein, um durch ein Wegbewegen des Bewegkontaktstücks vom Festkontaktstück ein Öffnen des Schaltkontaktes zu bewirken. Das magnetische Auslösesystem weist hierzu ein Magnetjoch auf, über das die Spule mit dem Festkontaktstück elektrisch leitend verbunden ist, wobei der Stromführungsabschnitt als Teil des Magnetjochs ausgebildet ist.From the time of the contact opening to the time of commutation of the arc from the moving contact piece on a guide rail of the protective switching device, the arc burns between the fixed contact piece and the moving contact piece. In this period of time, a substantially U-shaped current guide results, which is composed of a first leg, which is formed by the line-connected current-carrying section, and a second leg, which is formed by the line-free arc. In this case, the two legs are opposite, ie substantially parallel to each other, but oriented opposite to each other, flows through the current. In this case, the current-carrying section is arranged in the first region of the current path, ie between the input terminal and the fixed contact piece, and designed in such a way that the current flowing to the stationary contact piece has a U-shaped profile. Advantageously, the current-carrying section is spatially positioned relatively close to the switching contact and thus to the arc which forms when the switching contact is opened in order to achieve the highest possible force acting on the arc. In this way, the switching performance can be further improved. According to the invention, the protective switching device has a magnetic release system, which is electrically conductively connected to the input terminal via a coil and has a plunger that is mounted so as to be movable relative to the coil. The plunger acts in the event of a short circuit directly and / or indirectly to the switching contact to cause by moving away the Bewegkontaktstücks from the fixed contact opening of the switching contact. For this purpose, the magnetic release system has a magnetic yoke over which the coil with the fixed contact piece is electrically conductive is connected, wherein the current-carrying portion is formed as part of the magnetic yoke.

Ein magnetisches Auslösesystem mit einer Magnetspule und einem relativ dazu beweglich gelagerten Stößel stellt eine im Bereich der Schutzschaltgeräte weit verbreitete Möglichkeit zur Realisierung einer Auslösung im Falle eines Kurzschlusses dar. Fließt ein Kurzschlussstrom, so wird dieser durch die Spule geleitet, wodurch ein mit dem Stößel verbundener Anker von der Spule angezogen wird. Der Stößel schlägt dabei auf das Bewegkontaktstück oder auf ein mit diesem mechanisch verbundenen Bewegkontaktträger, so dass dieser vom Bewegkontaktstück wegbewegt wird, um ein Verschweißen der beiden Kontaktstücke zu verhindern. Weiterhin wird durch die Bewegung des Stößels eine Schaltmechanik des Schutzschaltgerätes ausgelöst, wodurch der Schaltkontakt über das mit der Schaltmechanik mechanisch gekoppelte Bewegkontaktstück ebenfalls geöffnet wird.A magnetic trip system with a solenoid and a relative thereto movably mounted ram represents a widespread in the field of protection devices possibility of realization of a trigger in the event of a short circuit. If a short-circuit current, so this is passed through the coil, whereby one connected to the plunger Anchor is attracted by the coil. The plunger strikes the Bewegkontaktstück or on a mechanically connected with this Bewegkontaktträger, so that it is moved away from the Bewegkontaktstück to prevent welding of the two contact pieces. Furthermore, a switching mechanism of the protective switching device is triggered by the movement of the plunger, whereby the switching contact is also opened via the mechanically coupled with the switching mechanism Bewegkontaktstück.

Über das Magnetjoch ist die Spule mit dem Bewegkontaktstück elektrisch leitend verbunden. Das Magnetjoch ist somit der dem Bewegkontaktstück nächstliegend angeordnete Teil des ersten Bereichs des Strompfads. Dieser Bereich ist dabei konstruktiv derart gestaltet, dass der von der Spule über das Magnetjoch zum Festkontaktstück fließende Strom u-förmig verläuft. Auf diese Weise ist der Stromverlauf im Bereich des Stromführungsabschnitts im Wesentlichen entgegengerichtet zum Stromverlauf über den Lichtbogen orientiert. Ist der Stromführungsabschnitt dabei räumlich relativ nahe an dem Schaltkontakt und damit an dem sich bei Öffnen des Schaltkontakts ausbildenden Lichtbogen positioniert, so kann dadurch eine möglichst hohe Kraftwirkung auf den Lichtbogen erzielt werden. Erfindungsgemäß ist das Magnetjoch im Bereich des Stromführungsabschnitts gegabelt ausgebildet und weist dort zwei Schenkel auf, so dass Bewegkontaktstück und Bewegkontaktträger bei geschlossenem Schaltkontakt zumindest teilweise zwischen den beiden Schenkeln des Stromführungsabschnitts angeordnet ist.About the magnetic yoke, the coil is electrically connected to the Bewegkontaktstück. The magnetic yoke is thus the part of the first region of the current path next to the moving contact piece. This area is structurally designed such that the current flowing from the coil via the magnetic yoke to the fixed contact piece runs in a U-shaped manner. In this way, the current profile in the region of the current-carrying section is oriented substantially opposite to the current profile across the arc. If the current-carrying section is spatially positioned relatively close to the switching contact and thus to the arc which forms when the switching contact is opened, the highest possible force acting on the arc can thereby be achieved. According to the invention, the magnetic yoke is forked in the region of the current-carrying section and has two Leg on, so that moving contact piece and moving contact carrier is at least partially disposed with closed switching contact between the two legs of the current-carrying section.

Auf diese Weise ist der Stromführungsabschnitt räumlich in unmittelbarer Nähe zu dem sich bei Öffnen des Schaltkontakts ausbildenden Lichtbogen angeordnet. Das im Zusammenwirken mit dem Lichtbogen entstehende elektromagnetische Feld weist somit eine deutlich höhere Feldstärke auf, wodurch wiederum auf den Lichtbogen eine deutlich höhere Kraft wirkt, so dass der Lichtbogen schneller in aus dem Kontaktbereich in Richtung der Löschkammer getrieben wird. Die Schaltleistung des Schutzschaltgerätes wird dadurch weiter verbessert.In this way, the current-carrying section is arranged spatially in the immediate vicinity of the arc which forms when the switching contact is opened. The resulting in cooperation with the arc electric field thus has a much higher field strength, which in turn acts on the arc significantly higher power, so that the arc is driven faster in from the contact area in the direction of the quenching chamber. The switching capacity of the protective switching device is thereby further improved.

In einer weiteren vorteilhaften Weiterbindung des Schutzschaltgerätes ist das Bewegkontaktstück auf einem drehbar gelagerten Bewegkontaktträger angeordnet, wobei der Stromführungsabschnitt Teil des Bewegkontaktträgers ist.In a further advantageous further connection of the protective switching device, the moving contact piece is arranged on a rotatably mounted moving contact carrier, wherein the current-carrying section is part of the moving contact carrier.

Anstatt den Stromführungsabschnitt im ersten Bereich des Strompfades auszubilden, ist auch eine Ausbildung im zweiten Bereich des Strompfades, d.h. auf dem Weg vom Bewegkontaktstück zum Ausgangsanschluss, möglich. Diese Ausbildung im zweiten Bereich kann dabei alternativ zur Ausbildung im ersten Bereich, aber auch zusätzlich dazu erfolgen. Wesentlich dabei ist wiederum, dass der Stromführungsabschnitt räumlich relativ nahe an dem Schaltkontakt und damit an dem sich bei Öffnen des Schaltkontakts ausbildenden Lichtbogen angeordnet ist, um eine möglichst hohe Kraftwirkung auf den Lichtbogen zu erreichen. Auf diese Weise wird die Schaltleistung weiter verbessert.Instead of forming the current-carrying section in the first region of the current path, formation in the second region of the current path, i. on the way from the moving contact to the output connection, possible. This training in the second area can be done alternatively to training in the first area, but also in addition. It is essential, in turn, that the current-carrying section is arranged spatially relatively close to the switching contact and thus to the arc which forms when the switching contact is opened in order to achieve the highest possible force acting on the arc. In this way, the switching performance is further improved.

In einer weiteren vorteilhaften Weiterbindung des Schutzschaltgerätes ist der Stromführungsabschnitt mit dem Bewegkontaktträger drehbar oder flexibel verbunden. Um eine möglichst gute Kraftwirkung auf den Lichtbogen zu erzielen ist der im zweiten Bereich des Strompfads ausgebildete Stromführungsabschnitt drehbeweglich oder zumindest flexibel mit dem Bewegkontaktträger verbunden. Auf diese Weise kann die geometrische Anordnung des Stromführungsabschnitts zum Lichtbogen während der Öffnungsbewegung des Bewegkontaktträgers optimiert werden.In a further advantageous connection of the protective switching device, the current-carrying section is rotatably or flexibly connected to the moving contact carrier. In order to achieve the best possible force on the arc the current-carrying section formed in the second region of the current path is connected in a rotationally movable manner or at least flexibly to the moving-contact carrier. In this way, the geometric arrangement of the current-carrying section to the arc during the opening movement of the Bewegkontaktträgers be optimized.

In einer weiteren vorteilhaften Weiterbindung des Schutzschaltgerätes ist der Stromführungsabschnitt relativ zu einem Gehäuse des Schutzschaltgerätes ortsfest gelagert. Auf diese Weise ist eine vereinfachte Montage des Schutzschaltgerätes gewährleistet.In a further advantageous further connection of the protective switching device, the current-carrying section is mounted stationary relative to a housing of the protective switching device. In this way, a simplified installation of the protective device is guaranteed.

Das erfindungsgemäße Magnetjoch ist zur Verwendung in einem Schutzschaltgerät der vorstehend beschriebenen Art ausgebildet.The magnetic yoke according to the invention is designed for use in a protective switching device of the type described above.

Das erfindungsgemäße Magnetjoch ist dabei zum Einbau in einem magnetischen Auslösesystem eines elektrischen Schutzschaltgerätes, insbesondere eines Leitungsschutzschalters, vorgesehen. Es weist einen ersten Bereich auf, welcher zur elektrisch leitenden Kontaktierung des Magnetjochs mit einer Auslösespule des magnetischen Auslösesystems ausgebildet ist. Weiterhin weist das Magnetjoch einen zweiten Bereich auf, welcher zur elektrisch leitenden Kontaktierung des Magnetjochs mit einem Festkontaktstück eines Schaltkontaktes des Schutzschaltgerätes ausgebildet ist. Dabei entsteht beim Öffnen des bestromten Schaltkontaktes ein Lichtbogen, welcher zunächst, d.h. in einer ersten Phase der Lichtbogenentstehung, zwischen dem Festkontaktstück und einem relativ dazu beweglichen Bewegkontaktstück brennt. Dabei ist das erfindungsgemäße Magnetjoch geometrisch derart gestaltet, dass im bestromten Zustand der Stromfluss in dem zweiten Bereich zumindest teilweise im Wesentlichen gegengleich zum Stromfluss über den Lichtbogen orientiert ist. Das durch das Zusammenwirken des stromdurchflossenen zweiten Bereichs sowie des Lichtbogens entsteht ein elektromagnetisches Feld, dessen Feldlinien im Bereich des Lichtbogens derart orientiert sind, dass auf den Lichtbogen eine definierte Kraft, die sogenannte Lorentzkraft ausgeübt wird, welche derart gerichtet ist, dass der Lichtbogen aus dem Kontaktbereich des Schaltkontaktes, d.h. von Fest- und Bewegkontakt wegbewegt wird. Auf diese Weise kann der Lichtbogen schneller in eine Löschkammer des Schutzschaltgerätes getrieben und dort gelöscht werden. Die Schaltleistung, die mit der Dauer von der Entstehung des Lichtbogens bis zu dessen Erlöschen zusammenhängt, wird dadurch deutlich verbessert.The magnetic yoke according to the invention is provided for installation in a magnetic trip system of an electrical protection switching device, in particular a circuit breaker. It has a first region, which is designed for electrically conductive contacting of the magnetic yoke with a trip coil of the magnetic trip system. Furthermore, the magnetic yoke on a second region, which is designed for electrically conductive contacting of the magnetic yoke with a fixed contact piece of a switching contact of the protective switching device. This results in the opening of the energized switching contact an arc, which first, ie burns in a first phase of the arc, between the fixed contact piece and a movable relative to moving contact piece. In this case, the magnetic yoke according to the invention is geometrically designed such that in the energized state, the current flow in the second region is oriented at least partially substantially opposite to the current flow across the arc. The interaction of the current flowing through the second region and the arc creates an electromagnetic field whose Field lines are oriented in the region of the arc so that a defined force, the so-called Lorentz force is applied to the arc, which is directed such that the arc from the contact region of the switching contact, that is moved away from fixed and moving contact. In this way, the arc can be driven faster into a quenching chamber of the protective device and deleted there. The switching capacity, which is related to the duration of the emergence of the arc until its extinction, thereby significantly improved.

Im Folgenden wird ein Ausführungsbeispiel des Schutzschaltgerätes unter Bezug auf die beigefügten Figuren näher erläutert. In den Figuren sind:

Figuren 1A und 1B
schematische Darstellungen eines Schaltkontakts des Schutzschaltgerätes in mehreren Zuständen;
Figuren 2A und 2B
schematische Darstellungen eines magnetischen Auslösesystems des Schutzschaltgerätes in mehreren Ansichten;
Figur 3
eine schematische Darstellung eines Magnetjochs des magnetischen Auslösesystems.
In the following, an embodiment of the protective switching device will be explained in more detail with reference to the accompanying figures. In the figures are:
Figures 1A and 1B
schematic representations of a switching contact of the protective device in several states;
FIGS. 2A and 2B
schematic representations of a magnetic trip system of the protection device in several views;
FIG. 3
a schematic representation of a magnetic yoke of the magnetic trip system.

In den verschiedenen Figuren der Zeichnung sind gleiche Teile stets mit dem gleichen Bezugszeichen versehen. Die Beschreibung gilt für alle Zeichnungsfiguren, in denen das entsprechende Teil ebenfalls zu erkennen ist.In the various figures of the drawing, like parts are always provided with the same reference numerals. The description applies to all drawing figures in which the corresponding part can also be recognized.

In den Figuren 1A und 1B ist ein Schaltkontakt des Schutzschaltgerätes 1 in mehreren Schaltzuständen schematisch dargestellt. Der Schaltkontakt weist ein Festkontaktstück 4 sowie ein relativ dazu bewegbares Bewegkontaktstück 5 auf. Das Bewegkontaktstück 5 ist auf einem in einem Gehäuse des Schutzschaltgerätes 1 drehbar gelagerten Bewegkontaktträger 6 montiert. Es ist jedoch auch möglich, das Bewegkontaktstück 5 in den Bewegkontaktträger 6 derart zu integrieren, dass ein geeigneter Teilbereich des Bewegkontaktträgers 6 als Bewegkontaktstück 5 fungiert und zusammen mit dem Festkontaktstück 4 den Schaltkontakt bildet. Das Festkontaktstück 4 ist auf einem Festkontaktträger 22 montiert, welcher Bestandteil eines Magnetjochs 20 ist. Das Magnetjoch 20 weist ein elektrisches Anschlusselement 21 auf, über welches das Magnetjoch 20 mit einer Magnetspule 12 elektrisch leitend verbunden ist. Die Magnetspule 20 ist Teil eines magnetischen Auslösesystems 10 (siehe Figuren 2A und 2B), welches im Falle eines Kurzschlusses ein Öffnen des Schaltkontakts bewirkt. Weiterhin weist das Magnetjoch 20 ein Kontakthorn 23 auf, über welches das Magnetjoch 20 mit einem ersten Ende einer Löschkammer 7 des Schutzschaltgerätes 1 elektrisch leitend verbunden ist.In the Figures 1A and 1B a switching contact of the protective switching device 1 is shown schematically in several switching states. The switching contact has a fixed contact piece 4 and a relatively movable Bewegkontaktstück 5 on. The Bewegkontaktstück 5 is mounted on a rotatably mounted in a housing of the protective switching device 1 Bewegkontaktträger 6. However, it is also possible to integrate the Bewegkontaktstück 5 in the Bewegkontaktträger 6 such that a suitable portion of the Bewegkontaktträgers 6 acts as Bewegkontaktstück 5 and forms the switching contact together with the fixed contact 4. The fixed contact piece 4 is mounted on a fixed contact carrier 22 which is part of a magnetic yoke 20. The yoke 20 has an electrical connection element 21, via which the magnetic yoke 20 is electrically conductively connected to a magnet coil 12. The solenoid 20 is part of a magnetic trip system 10 (see FIGS. 2A and 2B ), which causes an opening of the switching contact in the event of a short circuit. Furthermore, the magnetic yoke 20 has a contact horn 23, via which the magnetic yoke 20 is electrically conductively connected to a first end of a quenching chamber 7 of the protective switching device 1.

Über einen Eingangsanschluss (nicht dargestellt) und einen Ausgangsanschluss (nicht dargestellt), die beispielsweise als Anschlussklemmen ausgebildet sein können, wird das Schutzschaltgerät 1 in eine zu schützende elektrische Leitung integriert. Im Inneren des Schutzschaltgerätes 1 sind - sofern der Schaltkontakt geschlossen ist - Eingangsanschluss und Ausgangsanschluss über einen Strompfad elektrisch leitend miteinander verbunden. In den Figuren 1A und 1B ist der über den Strompfad geführte Stromfluss I durch einfache Pfeile im Bereich der jeweiligen Komponenten dargestellt. Ein erster Bereich des Strompfads führt dabei von dem Eingangsanschluss über die Magnetspule 12 und das Magnetjoch 20 zu dem Festkontaktstück 4. Ein zweiter Bereich des Strompfads führt von dem Bewegkontaktstück 5 zu dem Ausgangsanschluss des Schutzschaltgerätes 1. Durch Öffnen des Schaltkontakts kann der Strompfad somit unterbrochen werden.Via an input terminal (not shown) and an output terminal (not shown), which may be formed, for example, as terminals, the protective switching device 1 is integrated into an electrical line to be protected. Inside the protective switching device 1 - if the switching contact is closed - the input terminal and the output terminal are electrically conductively connected to one another via a current path. In the Figures 1A and 1B the current flow I guided over the current path is represented by simple arrows in the area of the respective components. A first region of the current path leads from the input terminal via the magnet coil 12 and the magnetic yoke 20 to the fixed contact piece 4. A second region of the current path leads from the moving contact piece 5 to the output terminal of the protective switching device 1. By opening the switching contact, the current path can thus be interrupted ,

In Figur 1A ist das Schutzschaltgerät 1 mit geschlossenem Schaltkontakt dargestellt, d.h. das Festkontaktstück 4 und das Bewegkontaktstück 5 stehen in direktem Kontakt, so dass über den Schaltkontakt ein elektrischer Strom fließen kann. In dieser Stellung, die auch als EIN-Stellung bezeichnet wird, sind Eingangsanschluss und Ausgangsanschluss elektrisch leitend miteinander verbunden. Wird der Schaltkontakt durch Wegbewegen des Bewegkontaktstücks 5 vom Festkontaktstück 4 geöffnet, so bildet sich - sofern der Schaltkontakt zum Zeitpunkt der Öffnung stromdurchflossen ist - zwischen dem Festkontaktstück 4 und dem Bewegkontaktstück 5 ein Lichtbogen 9 aus. Dieser Beginn der Kontaktöffnung ist in Figur 1B dargestellt. Dabei weist der erste Bereich des Strompfads einen Stromführungsabschnitt 24 auf, welcher an dem Magnetjoch 20 ausgebildet ist. Dieser Stromführungsabschnitt 24 ist dabei geometrisch derart angeordnet, dass er mit dem zwischen dem Festkontaktstück 4 und dem Bewegkontaktstück 5 brennenden Lichtbogen 9 derart zusammenwirkt, das ein resultierendes elektromagnetisches Feld gebildet wird, dessen Feldlinien im Bereich des Schaltkontakts im Wesentlichen senkrecht zur Zeichnungsebene orientiert sind. Dieses elektromagnetische Feld übt auf den Lichtbogen 9 sowie den Stromführungsabschnitt 24 eine Kraft F aus, welche die beiden Leitungsabschnitte - den Stromführungsabschnitt 24 und den Lichtbogen 9 - auseinander drückt. Da der Stromführungsabschnitt 24 ortsfest in einem Gehäuse des Schutzschaltgerätes 1 angeordnet ist, bewirkt die zwischen dem Stromführungsabschnitt 24 und dem Lichtbogen 9 abstoßend wirkende Kraft F, dass der Lichtbogen 9 vom Stromführungsabschnitt - und damit vom Schaltkontakt - weg in Richtung der Löschkammer 7 getrieben wird.In Figure 1A the protective switching device 1 is shown with a closed switch contact, ie, the fixed contact piece 4 and the moving contact piece 5 are in direct contact, so that via the switching contact, an electric current can flow. In this position, which is also referred to as ON position, input terminal and output terminal are electrically connected to each other. If the switching contact is opened by moving away the moving contact piece 5 from the fixed contact piece 4, an arc 9 is formed between the fixed contact piece 4 and the moving contact piece 5, provided that the switching contact is current-flowed at the time of opening. This beginning of the contact opening is in FIG. 1B shown. In this case, the first region of the current path has a current-carrying section 24, which is formed on the magnetic yoke 20. This current-carrying section 24 is geometrically arranged such that it cooperates with the arc 9 burning between the fixed contact piece 4 and the moving contact piece 5 in such a way that a resulting electromagnetic field is formed whose field lines are oriented substantially perpendicular to the plane of the drawing in the area of the switching contact. This electromagnetic field exerts on the arc 9 and the current-carrying section 24 a force F, which presses the two line sections - the current-carrying section 24 and the arc 9 - apart. Since the current-carrying section 24 is arranged stationarily in a housing of the protective switching device 1, the force F repelling between the current-carrying section 24 and the arc 9 causes the arc 9 to be driven away from the current-carrying section-and thus from the switching contact-in the direction of the quenching chamber 7.

In der Darstellung der Figur 1B wird dabei deutlich, dass der Stromfluss I über den leitungsgebundenen Stromführungsabschnitt 24 im Wesentlichen gegengleich - d.h. im Wesentlichen parallel aber entgegengesetzt gerichtet - zu dem leitungsungebundenen Stromfluss I über den Lichtbogen 9 orientiert ist. Zusammen mit dem Abschnitt im Bereich des Festkontaktstücks 4 ist somit eine im Wesentlichen u-förmige Stromführung im Bereich des Schaltkontakts realisiert.In the presentation of the FIG. 1B In this case, it becomes clear that the current flow I via the line-connected current-carrying section 24 is oriented essentially opposite to one another-that is, essentially parallel but oppositely directed-to the conduction-bound current flow I via the arc 9. Together with the section in the region of the fixed contact piece 4th Thus, a substantially U-shaped current flow in the region of the switching contact is realized.

Wird das Bewegkontaktstück 5 durch eine weiterführende Schwenkbewegung des Bewegkontaktträgers 6 weiter von dem Festkontaktstück wegbewegt, so springt der Lichtbogen ab einer bestimmten Länge auf eine sogenannte Leitschiene 8 über, welche mit einem zweiten Ende der Löschkammer 7 elektrisch leitend verbunden ist. Der Lichtbogen brennt dann zunächst zwischen dem mit dem Festkontaktstück 4 elektrisch leitend verbundenem Kontakthorn 23 und der Leitschiene 8, bevor er in die Löschkammer 7 geleitet und dort gelöscht wird.If the moving contact piece 5 is further moved away from the fixed contact piece by a further pivoting movement of the moving contact carrier 6, the arc jumps from a certain length to a so-called guide rail 8, which is electrically conductively connected to a second end of the extinguishing chamber 7. The arc then burns first between the electrically connected to the fixed contact 4 contact horn 23 and the guide rail 8, before being passed into the quenching chamber 7 and deleted there.

In den Figuren 2A und 2B ist das magnetische Auslösesystem 10 des Schutzschaltgerätes 1 in mehreren Ansichten schematisch dargestellt. Über eine elektrische Anschlussleitung 11, welche sowohl als flexible Litze als auch starr ausgebildet sein kann, ist das magnetische Auslösesystem mit dem Eingangsanschluss des Schutzschaltgerätes 1 elektrisch leitend verbunden. Die Anschlussleitung 11 ist weiterhin mit einem ersten Ende der Magnetspule 12 elektrisch leitend verbunden. Im vollständig montierten Zustand ist eine Anker-Stößel-Baugruppe (nicht dargestellt) in der Magnetspule 12 derart verschiebbar gelagert angeordnet, dass im Falle eines Kurzschlusses, bei dem ein Kurzschlussstrom durch die Magnetspule 12 fließt, der Anker in die Magnetspule 12 gezogen wird. Der mit dem Anker fest verbundene Stößel schlägt dabei auf einen Auslösehebel, wodurch eine Schaltmechanik des Schutzschaltgerätes 1 ausgelöst wird, die ein Öffnen des Schaltkontakts bewirkt.In the FIGS. 2A and 2B the magnetic trip system 10 of the protective switching device 1 is shown schematically in several views. Via an electrical connection line 11, which may be designed as a flexible strand as well as rigid, the magnetic trip system with the input terminal of the protection device 1 is electrically connected. The connecting line 11 is further electrically conductively connected to a first end of the magnetic coil 12. In the fully assembled state, an armature plunger assembly (not shown) is slidably mounted in the solenoid coil 12 such that in the event of a short circuit in which a short circuit current flows through the solenoid coil 12, the armature is pulled into the solenoid coil 12. The firmly connected to the anchor plunger strikes a release lever, whereby a switching mechanism of the protective device 1 is triggered, which causes an opening of the switch contact.

Ein weiterer Bestandteil des magnetischen Auslösesystems 10 ist das Magnetjoch 20 (siehe auch Figur 3), welches im dargestellten Ausführungsbeispiel als Blechbiegeteil ausgeführt ist. Über einen als elektrisches Anschlusselement 21 ausgebildeten Teilbereich des Magnetjochs 20 ist das Magnetjoch 20 mit einem zweiten Ende der Magnetspule 12 elektrisch leitend verbunden. Im bestromten Zustand fließt der elektrische Strom I von der Magnetspule 12 über das Anschlusselement 21 weiter über den Stromführungsabschnitt 24 zu einem als Festkontaktträger 22 bezeichneten Bereich des Magnetjochs 20. In diesem Bereich ist das Festkontaktstück 4 fest mit dem Magnetjoch 20 verbunden. Bei geschlossenem Schaltkontakt fließt der elektrische Strom weiter über das Festkontaktstück 4 und das Bewegkontaktstück 5 sowie den Bewegkontaktträger 6, welcher wiederum mit dem Ausgangsanschluss des Schutzschaltgerätes 1 elektrisch leitend verbunden ist.Another component of the magnetic trip system 10 is the magnetic yoke 20 (see also FIG. 3 ), which is designed in the illustrated embodiment as a sheet metal bent part. About a designed as an electrical connection element 21 portion of the magnetic yoke 20, the yoke 20 is electrically conductive with a second end of the solenoid coil 12 connected. In the energized state, the electric current I flows from the solenoid coil 12 via the connection element 21 on the current guide portion 24 to a fixed contact carrier 22 designated area of the magnetic yoke 20. In this area, the fixed contact 4 is fixedly connected to the yoke 20. When the switch contact is closed, the electric current continues to flow via the fixed contact piece 4 and the moving contact piece 5 and the moving contact carrier 6, which in turn is electrically conductively connected to the output terminal of the protective switching device 1.

Bei geöffnetem Schaltkontakt fließt der Strom zunächst über den Lichtbogen 9. Nach der Kommutierung des Lichtbogens 9 auf die Leitschiene 8 (siehe Figuren 1A und 1B), welche mit ihrem einen Ende mit der Lichtbogen-Löschkammer 7 und mit ihrem anderen Ende mit dem Ausgangsanschluss elektrisch leitend verbunden ist, fließt der Strom - ausgehend von dem als Festkontaktträger 22 bezeichneten Bereich des Magnetjochs 20 - über das Kontakthorn 23 zu einem als Löschkammerplatte 27 ausgebildeten Bereich. Diese Löschkammerplatte 27 stellt das obere Ende der Lichtbogen-Löschkammer 7 dar; das untere Ende der Lichtbogen-Löschkammer 7 ist mit der Leitschiene 8 elektrisch leitend verbunden. Wird der Lichtbogen in die Lichtbogen-Löschkammer 7 getrieben, so wird er durch die dort parallel angeordneten Löschbleche in eine Vielzahl elektrisch zueinander in Reihe geschalteter Teillichtbögen aufgeteilt. Aufgrund dieser elektrischen Reihenschaltung steigt die Gesamt-Bogenspannung soweit an, dass der Lichtbogen schließlich abbricht und erlischt.When the switch contact is open, the current first flows through the arc 9. After the commutation of the arc 9 on the guide rail 8 (see Figures 1A and 1B ), which is electrically conductively connected at one end to the arc quenching chamber 7 and at the other end to the output terminal, the current - starting from the designated as fixed contact carrier 22 portion of the magnetic yoke 20 - via the contact horn 23 to a quenching chamber plate 27 trained area. This quenching chamber plate 27 represents the upper end of the arc quenching chamber 7; the lower end of the arc quenching chamber 7 is electrically conductively connected to the guide rail 8. If the arc is driven into the arc quenching chamber 7, it is divided by the quenching plates arranged there in parallel into a plurality of partial arcs connected electrically in series with each other. Due to this electrical series connection, the total arc voltage increases so far that the arc eventually stops and goes out.

Im Bereich zwischen dem elektrischen Anschlusselement 21 und dem Festkontaktträger 22, in dem auch der Stromführungsabschnitt 24 angeordnet ist, ist das Magnetjoch 20 gegabelt ausgebildet, d.h. der Bewegkontaktträger 6 mit dem daran angeordneten Bewegkontaktstück 25 taucht bei geschlossenem Schaltkontakt zumindest teilweise zwischen den beiden Teilen des Stromführungsabschnitts 24 des gegabelt ausgeführten Magnetjochs 20 ein. Hierdurch befindet sich der sich beim Öffnen des Schaltkontakts bildende Lichtbogen 9 in unmittelbarer Nähe zu den beiden Teilen des Stromführungsabschnitts 24, wodurch für das im Zusammenwirken mit dem Lichtbogen 9 entstehende elektromagnetische Feld eine deutlich höhere Feldstärke erzielt wird. Dadurch wirkt auf den Lichtbogen 9 eine deutlich höhere Lorentzkraft, so dass der Lichtbogen 9 schneller aus dem Kontaktbereich in Richtung der Löschkammer 7 getrieben wird.In the region between the electrical connection element 21 and the fixed contact carrier 22, in which the current-carrying section 24 is arranged, the magnetic yoke 20 is forked, ie the Bewegkontaktträger 6 with the Bewegkontaktstück arranged thereon 25 dives at the closed switch contact at least partially between the two parts of the current-carrying section 24 of the forked magnetic yoke 20 on. As a result, the forming during opening of the switching contact arc 9 is in close proximity to the two parts of the current-carrying section 24, whereby a significantly higher field strength is achieved for the resulting in cooperation with the electric arc 9 electromagnetic field. As a result, a significantly higher Lorentz force acts on the arc 9, so that the arc 9 is driven faster out of the contact region in the direction of the quenching chamber 7.

Figur 3 zeigt eine schematische Detaildarstellung des Magnetjochs 20 des magnetischen Auslösesystems 10. Hierbei sind insbesondere die Gestaltung als Blechbiegeteil sowie die gegabelte Ausführung im Bereich des Stromführungsabschnitts 24 gut zu erkennen. In einem Bereich zwischen dem elektrischen Anschlusselement 21 und dem Montageelement 25 weist das Magnetjoch 20 eine Öffnung 26 auf, welche im montieren Zustand zumindest teilweise in die Magnetspule 12 eintaucht und zur Aufnahme und Führung der Anker-Stößel-Baugruppe ausgebildet ist. Auf diese Weise kann das magnetische Auslösesystem möglichst kompakt gestaltet werden. FIG. 3 shows a schematic detail of the magnetic yoke 20 of the magnetic trip system 10. Here, in particular the design as a sheet metal bent part and the bifurcated design in the region of the current-carrying section 24 are clearly visible. In a region between the electrical connection element 21 and the mounting element 25, the magnetic yoke 20 has an opening 26, which at least partially immersed in the assembled state in the solenoid coil 12 and is designed to receive and guide the armature plunger assembly. In this way, the magnetic release system can be made as compact as possible.

Bei dem anhand der Figuren beschriebenen Ausführungsbeispiel ist der Stromführungsabschnitt 24 an dem Magnetjoch 20 und mithin im ersten Bereich des Strompfads angeordnet. Es ist jedoch ebenso möglich, den Stromführungsabschnitt im zweiten Bereich des Strompfads, d.h. zwischen dem Bewegkontakt 6 und dem Ausgangsanschluss anzuordnen. Dies kann sowohl alternativ als auch zusätzlich zur Anordnung im ersten Bereich des Strompfads erfolgen. Beispielsweise könnte auch der Bewegkontaktträger 6 entsprechend geformt sein, dass ein stromführender Abschnitt des Bewegkontaktträgers 6 im Wesentlichen gegengleich zum Lichtbogen 9 orientiert ist.In the embodiment described with reference to the figures, the current-carrying section 24 is arranged on the magnetic yoke 20 and thus in the first region of the current path. However, it is also possible to arrange the current-carrying section in the second region of the current path, ie between the moving contact 6 and the output connection. This can be done both alternatively and in addition to the arrangement in the first region of the current path. For example, the moving contact carrier 6 could also be correspondingly shaped such that a current-carrying section of the moving contact carrier 6 is oriented essentially opposite to the arc 9.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
SchutzschaltgerätProtection device
44
FestkontaktstückFixed contact piece
55
BewegkontaktstückBewegkontaktstück
66
BewegkontaktträgerBewegkontaktträger
77
Löschkammerextinguishing chamber
88th
LeitschieneGuardrail
99
LichtbogenElectric arc
1010
magnetisches Auslösesystemmagnetic trip system
1111
Anschlussleitungconnecting cable
1212
Magnetspulesolenoid
2020
Magnetjochyoke
2121
Anschlusselementconnecting element
2222
FestkontaktträgerFixed contact carrier
2323
KontakthornContact Horn
2424
StromführungsabschnittCurrent-carrying section
2525
Montageelementmounting element
2626
Öffnungopening
2727
LöschkammerplatteExtinguishing chamber plate
DD
Drehachseaxis of rotation
FF
Kraftforce
II
el. Strom / Stromflussel. current / current flow

Claims (5)

  1. Protective switching device (1), in particular line circuit breaker,
    - having an input connection and an output connection which are designed to make contact between the protective switching device (1) and an electrical line,
    - having a switching contact which has a fixed contact piece (4) arranged in a stationary manner and a moving contact piece (5) movable relative thereto, which contact pieces are designed in such a manner that an arc (9) is formed between the moving contact piece (5) and the fixed contact piece (4) during opening of the current-conducting switching contact,
    - in which the switching contact is connected to the input connection and to the output connection in an electrically conductive manner via a current path,
    the current path having a current-conducting section (24) which is formed in such a manner and interacts with the arc (9) in such a manner that a resulting electromagnetic field is formed and interacts with the arc (9) in such a manner that the arc is driven away from the switching contact,
    the current-conducting section (24) being formed in such a manner that it forms a substantially u-shaped current guide with the arc (9) which is struck between the moving contact piece (5) and the fixed contact piece (4) at the time of the contact opening, the fixed contact piece (4) being connected to an electrically conductive contact horn (23),
    characterized
    - in that the protective switching device (1) has a magnetic tripping system (10) which is connected to the input connection in an electrically conductive manner via a coil (12) and has a plunger which is mounted such that it is movable relative to the coil (12) and acts on the switching contact directly and/or indirectly in the event of a short circuit in order to cause the switching contact to open as a result of the moving contact piece (5) moving away from the fixed contact piece (4),
    - in that the magnetic tripping system (10) has a magnet yoke (20) via which the coil (12) is connected to the fixed contact piece (4) in an electrically conductive manner, the current-conducting section (24) being formed as part of the magnet yoke (20), and
    - in that the magnet yoke (20) has a forked design in the region of the current-conducting section (24) and has two limbs, with the result that the moving contact piece (5) and the moving contact carrier (6) are at least partially arranged between the two limbs when the switching contact is closed.
  2. Protective switching device according to Claim 1, characterized
    - in that the current-conducting section (24) is positioned spatially close to the switching contact.
  3. Protective switching device according to either of Claims 1 to 2,
    characterized
    in that the moving contact piece is arranged on a rotatably mounted moving contact carrier, the current-conducting section being part of the moving contact carrier.
  4. Protective switching device according to Claim 3,
    characterized
    in that the current-conducting section is rotatably or flexibly connected to the moving contact carrier.
  5. Protective switching device according to one of Claims 1 to 4,
    characterized
    in that the current-conducting section is mounted in a stationary manner relative to a housing of the protective switching device.
EP13165024.4A 2012-07-12 2013-04-24 Protective switch device and magnet yoke Active EP2685482B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012212236.2A DE102012212236A1 (en) 2012-07-12 2012-07-12 Protection switching device and magnetic yoke

Publications (2)

Publication Number Publication Date
EP2685482A1 EP2685482A1 (en) 2014-01-15
EP2685482B1 true EP2685482B1 (en) 2017-05-31

Family

ID=48190181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13165024.4A Active EP2685482B1 (en) 2012-07-12 2013-04-24 Protective switch device and magnet yoke

Country Status (3)

Country Link
EP (1) EP2685482B1 (en)
CN (1) CN103545153B (en)
DE (1) DE102012212236A1 (en)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017212033A1 (en) 2017-07-13 2019-01-17 Siemens Aktiengesellschaft DC arc extinguishing device and electromechanical DC switching device
DE102017214557A1 (en) 2017-08-21 2019-02-21 Siemens Aktiengesellschaft Electromechanical protection device
DE102020200993A1 (en) 2020-01-28 2021-07-29 Siemens Aktiengesellschaft Remote operator, arrangement with a remote operator and method
DE102019220444B4 (en) 2019-12-20 2021-08-05 Siemens Aktiengesellschaft Remote operator and parameterization procedure
EP3944434A1 (en) 2020-07-22 2022-01-26 Siemens Aktiengesellschaft Fastening equipment and row installation device
DE102020210028A1 (en) 2020-08-07 2022-02-10 Siemens Aktiengesellschaft Operator-independent compact snap-action switch and electromechanical protective switching device
DE102020211531A1 (en) 2020-09-15 2022-03-17 Siemens Aktiengesellschaft Low voltage circuit breaker
DE102020214192A1 (en) 2020-11-11 2022-05-12 Siemens Aktiengesellschaft Combined short-circuit overload tripping device and electromechanical protective switching device
WO2022167538A1 (en) 2021-02-08 2022-08-11 Siemens Aktiengesellschaft Insulating-material housing and compact circuit breaker
DE102021202664A1 (en) 2021-03-18 2022-09-22 Siemens Aktiengesellschaft Compact circuit breaker
EP4131297A1 (en) 2021-08-05 2023-02-08 Siemens Aktiengesellschaft Slide-in summation current transformer, fault current circuit breaker and method of assembly
DE102021208516A1 (en) 2021-08-05 2023-02-09 Siemens Aktiengesellschaft Summation current transformer and residual current circuit breaker
DE102021208518A1 (en) 2021-08-05 2023-02-09 Siemens Aktiengesellschaft Insulated housing and low-voltage protective switching device
DE102022200297A1 (en) 2022-01-13 2023-07-13 Siemens Aktiengesellschaft Low Voltage Circuit Breaker and Mounting Method
DE102022200296A1 (en) 2022-01-13 2023-07-13 Siemens Aktiengesellschaft Single pole housing module and low voltage circuit breaker
WO2023169804A1 (en) 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Electronically switching rail-mounted device and insulating material housing
EP4258310A1 (en) 2022-04-06 2023-10-11 Siemens Aktiengesellschaft Housing module, insulating material housing and protective switching device
DE102022204329A1 (en) 2022-05-02 2023-11-02 Siemens Aktiengesellschaft Modular insulated housing and multi-pole modular series-mounted device
WO2023247255A1 (en) 2022-06-21 2023-12-28 Siemens Aktiengesellschaft Low-voltage circuit breaker device
EP4312243A1 (en) 2022-07-28 2024-01-31 Siemens Aktiengesellschaft Insert-sum current transducer assembly, series mounting device and assembly method
DE102022208674A1 (en) 2022-08-22 2024-02-22 Siemens Aktiengesellschaft Modular, multi-pole series-mounted device
DE102023200524B3 (en) 2023-01-24 2024-05-29 Siemens Aktiengesellschaft Connection terminal and DIN rail device
DE102023201130A1 (en) 2023-02-10 2024-08-29 Siemens Aktiengesellschaft Compact DIN rail mounted device and multi-pole DIN rail mounted device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108666185B (en) * 2017-03-31 2023-12-05 温州圣普电气有限公司 Large-current miniature circuit breaker
CN108074782B (en) * 2017-12-05 2024-09-20 北京德威特电气科技股份有限公司 Instantaneous switch and circuit breaker with same
DE102019117802A1 (en) * 2019-07-02 2021-01-07 Johnson Electric Germany GmbH & Co. KG Switching contact system of a switching device operated by electrical current
CN112735902A (en) * 2020-12-17 2021-04-30 滁州博格韦尔电气有限公司 Arc extinguish chamber of high-voltage circuit breaker for rail transit vehicle control circuit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333792A1 (en) * 1982-11-11 1984-05-17 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Line-protection circuit breaker having a contact arrangement which forms a blowing loop
DE19524915A1 (en) * 1995-07-08 1997-01-09 Abb Patent Gmbh Arc-quench arrangement esp for line circuit breaker - has portions of conductive loop extending along both arc guide rails and between them across face or back of arc-quench chamber.
DE102010036215A1 (en) * 2010-09-01 2012-03-01 Siemens Aktiengesellschaft Electrical circuit breaker

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841004C2 (en) 1978-09-21 1980-10-02 Licentia Gmbh Circuit breaker with additional blow loop
US4743720A (en) * 1985-11-25 1988-05-10 Matsushita Electric Works, Ltd. Current limiting circuit interrupter
CN1028264C (en) * 1992-07-02 1995-04-19 三菱电机株式会社 Switch
US5583328A (en) * 1992-07-02 1996-12-10 Mitsubishi Denki Kabushiki Kaisha High voltage switch including U-shaped, slitted stationary contact assembly with arc extinguishing/magnetic blowout features
JP3099690B2 (en) * 1995-08-03 2000-10-16 富士電機株式会社 Circuit breaker
DE29823717U1 (en) * 1998-08-13 1999-10-14 Siemens AG, 80333 München Miniature circuit breaker with arc operated blow coil
DE10058874A1 (en) * 2000-11-27 2002-03-21 Siemens Ag Meandering conductor coil e.g. for relay or protection switch, has folded conductor band providing self-supporting body with axial coil core reception space
DE10352934B4 (en) * 2003-11-11 2005-12-22 Siemens Ag Arc-extinguishing device
ATE390700T1 (en) * 2003-12-22 2008-04-15 Abb Schweiz Ag ARC EXTINGUISHING DEVICE FOR DOUBLE BREAK CIRCUIT BREAKERS

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333792A1 (en) * 1982-11-11 1984-05-17 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Line-protection circuit breaker having a contact arrangement which forms a blowing loop
DE19524915A1 (en) * 1995-07-08 1997-01-09 Abb Patent Gmbh Arc-quench arrangement esp for line circuit breaker - has portions of conductive loop extending along both arc guide rails and between them across face or back of arc-quench chamber.
DE102010036215A1 (en) * 2010-09-01 2012-03-01 Siemens Aktiengesellschaft Electrical circuit breaker

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017212033A1 (en) 2017-07-13 2019-01-17 Siemens Aktiengesellschaft DC arc extinguishing device and electromechanical DC switching device
DE102017214557A1 (en) 2017-08-21 2019-02-21 Siemens Aktiengesellschaft Electromechanical protection device
DE102017214557B4 (en) 2017-08-21 2024-08-08 Siemens Aktiengesellschaft Electromechanical protective switching device
DE102019220444B4 (en) 2019-12-20 2021-08-05 Siemens Aktiengesellschaft Remote operator and parameterization procedure
DE102020200993B4 (en) 2020-01-28 2023-06-01 Siemens Aktiengesellschaft Remote drive arrangement with a remote drive and method
DE102020200993A1 (en) 2020-01-28 2021-07-29 Siemens Aktiengesellschaft Remote operator, arrangement with a remote operator and method
EP3944434A1 (en) 2020-07-22 2022-01-26 Siemens Aktiengesellschaft Fastening equipment and row installation device
DE102020209257A1 (en) 2020-07-22 2022-01-27 Siemens Aktiengesellschaft Fastening device and modular installation device
DE102020210028A1 (en) 2020-08-07 2022-02-10 Siemens Aktiengesellschaft Operator-independent compact snap-action switch and electromechanical protective switching device
WO2022028849A1 (en) 2020-08-07 2022-02-10 Siemens Aktiengesellschaft Operator-independent compact spring-action switching mechanism and electromechanical protective switching device
DE102020211531A1 (en) 2020-09-15 2022-03-17 Siemens Aktiengesellschaft Low voltage circuit breaker
DE102020214192A1 (en) 2020-11-11 2022-05-12 Siemens Aktiengesellschaft Combined short-circuit overload tripping device and electromechanical protective switching device
DE102021201159A1 (en) 2021-02-08 2022-08-11 Siemens Aktiengesellschaft Insulated housing and compact circuit breaker
WO2022167538A1 (en) 2021-02-08 2022-08-11 Siemens Aktiengesellschaft Insulating-material housing and compact circuit breaker
DE102021202664A1 (en) 2021-03-18 2022-09-22 Siemens Aktiengesellschaft Compact circuit breaker
EP4131297A1 (en) 2021-08-05 2023-02-08 Siemens Aktiengesellschaft Slide-in summation current transformer, fault current circuit breaker and method of assembly
DE102021208514A1 (en) 2021-08-05 2023-02-09 Siemens Aktiengesellschaft Draw-in summation current transformers, residual current circuit breakers and assembly methods
DE102021208516A1 (en) 2021-08-05 2023-02-09 Siemens Aktiengesellschaft Summation current transformer and residual current circuit breaker
DE102021208518A1 (en) 2021-08-05 2023-02-09 Siemens Aktiengesellschaft Insulated housing and low-voltage protective switching device
EP4138112A1 (en) 2021-08-05 2023-02-22 Siemens Aktiengesellschaft Insulating housing and low-voltage protective switching device
DE102022200297A1 (en) 2022-01-13 2023-07-13 Siemens Aktiengesellschaft Low Voltage Circuit Breaker and Mounting Method
DE102022200296A1 (en) 2022-01-13 2023-07-13 Siemens Aktiengesellschaft Single pole housing module and low voltage circuit breaker
EP4213174A1 (en) 2022-01-13 2023-07-19 Siemens Aktiengesellschaft Single pole housing module and low voltage circuit breaker
EP4213175A1 (en) 2022-01-13 2023-07-19 Siemens Aktiengesellschaft Low voltage circuit breaker with voltage tap and pcb card and method of assembly
DE102022202311A1 (en) 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Electronically switching modular device and insulated housing
WO2023169804A1 (en) 2022-03-08 2023-09-14 Siemens Aktiengesellschaft Electronically switching rail-mounted device and insulating material housing
EP4258310A1 (en) 2022-04-06 2023-10-11 Siemens Aktiengesellschaft Housing module, insulating material housing and protective switching device
DE102022203408A1 (en) 2022-04-06 2023-10-12 Siemens Aktiengesellschaft Housing module, insulated housing and protective switching device
DE102022204329A1 (en) 2022-05-02 2023-11-02 Siemens Aktiengesellschaft Modular insulated housing and multi-pole modular series-mounted device
EP4274041A1 (en) 2022-05-02 2023-11-08 Siemens Aktiengesellschaft Modular insulating material housing and multipole modular series installation device
WO2023247255A1 (en) 2022-06-21 2023-12-28 Siemens Aktiengesellschaft Low-voltage circuit breaker device
EP4312243A1 (en) 2022-07-28 2024-01-31 Siemens Aktiengesellschaft Insert-sum current transducer assembly, series mounting device and assembly method
DE102022207779A1 (en) 2022-07-28 2024-02-08 Siemens Aktiengesellschaft Plug-in summation current transformer assembly, modular device and assembly method
DE102022208674A1 (en) 2022-08-22 2024-02-22 Siemens Aktiengesellschaft Modular, multi-pole series-mounted device
WO2024041855A1 (en) 2022-08-22 2024-02-29 Siemens Aktiengesellschaft Modular multi-pole rail-mounted device
DE102023200524B3 (en) 2023-01-24 2024-05-29 Siemens Aktiengesellschaft Connection terminal and DIN rail device
DE102023201130A1 (en) 2023-02-10 2024-08-29 Siemens Aktiengesellschaft Compact DIN rail mounted device and multi-pole DIN rail mounted device

Also Published As

Publication number Publication date
CN103545153A (en) 2014-01-29
EP2685482A1 (en) 2014-01-15
DE102012212236A1 (en) 2014-01-16
CN103545153B (en) 2018-07-10

Similar Documents

Publication Publication Date Title
EP2685482B1 (en) Protective switch device and magnet yoke
EP2980822B1 (en) Protective switch device and magnetic yoke
DE102013211539B4 (en) Switching mechanism and electromechanical protective switching device
DE102015217704A1 (en) Arc extinguishing device and protective switching device
DE1763007A1 (en) Auto switch
DE102012223168A1 (en) Electromechanical switching device, has arc-quenching device comprising first permanent magnet and second permanent magnet that are arranged on both sides of switching contact, where magnets are magnetized in opposite directions
EP1735803B1 (en) Switching device
DE102011089234A1 (en) Electric arc extinguishing device for use in e.g. circuit breaker, has double guide rail with projection, which is arranged such that arc is extended to projection of rail and divided in two partial arcs conducted into arc arcing chambers
EP3428942B1 (en) Direct current device for eliminating arcing and electromechanical direct current switching device
DE102011002714B4 (en) Circuit breaker
DE102017204942B4 (en) Electromechanical protective switching device
DE102017202370B4 (en) Arc quenching device, electromechanical protective switching device and manufacturing process
DE102017202818A1 (en) SLOT MOTOR CONFIGURATION FOR A MULTI-FINGER POWER SWITCH FOR HIGH AMPERE NUMBERS
WO2000007205A1 (en) Device for short-circuit protection
DE102012005031A1 (en) Service switching device e.g. fault current limiter, has contact apparatuses which are provided in interior of pressure-resistant chamber so that pressure inside the pressure-tight chamber is raised to extinguish the generated arc
DE102009035299B4 (en) Contact system and switching device
EP2541574B1 (en) Double interrupter protective switch device
EP3327742B1 (en) Device for eliminating arcing and electromechanical protection switching device
EP3889986B1 (en) Electromechanical compact protective switching device
DE102017202790B4 (en) Electromechanical protective switching device
EP2302657A1 (en) Current limiting system
DE102020211531A1 (en) Low voltage circuit breaker
DE102016203505B4 (en) Tripping device and electromechanical protective switching device
DE102015217694A1 (en) Arc extinguishing device and protective switching device
DE102012210745A1 (en) trigger mechanism

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

17P Request for examination filed

Effective date: 20140704

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

17Q First examination report despatched

Effective date: 20160211

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RIC1 Information provided on ipc code assigned before grant

Ipc: H01H 71/24 20060101ALI20161208BHEP

Ipc: H01H 9/44 20060101AFI20161208BHEP

Ipc: H01H 73/18 20060101ALI20161208BHEP

Ipc: H01H 50/36 20060101ALI20161208BHEP

INTG Intention to grant announced

Effective date: 20170102

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 898140

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170615

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013007350

Country of ref document: DE

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SIEMENS AKTIENGESELLSCHAFT

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG, CH

Ref country code: CH

Ref legal event code: PCOW

Free format text: NEW ADDRESS: WERNER-VON-SIEMENS-STRASSE 1, 80333 MUENCHEN (DE)

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170531

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170831

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170901

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170831

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170930

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013007350

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

26N No opposition filed

Effective date: 20180301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20180430

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180424

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180430

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180424

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 898140

Country of ref document: AT

Kind code of ref document: T

Effective date: 20180424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20130424

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

Ref country code: MK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240619

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240415

Year of fee payment: 12